Home / 81,425.09-112,374.87-45,621.47

Finding the Fourth Proportional to 81,425.09, 112,374.87 and 45,621.47

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Solution

The fourth proportional to 81,425.09, 112,374.87 and 45,621.47 is: 62,962.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,425.09 : 112,374.87 = 45,621.47 : x
  2. Step 2: Convert to fraction form
    81,425.09/112,374.87 = 45,621.47/x
  3. Step 3: Cross multiply
    81,425.09x = 112,374.87 × 45,621.47
  4. Step 4: Simplify right side
    81,425.09x = 5,126,706,760.46
  5. Step 5: Solve for x
    x = 5,126,706,760.46/81,425.09
  6. Step 6: Final answer
    x = 62,962.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.